This mobile application aims to teach fundamental concepts of Epidemiology to the general public. It is designed to: - draw a comparison between real scenarios and how scientists model them; - explain what are the best practices to prevent flu spreading according to the World Health Organization and the Center for Disease Control and Prevention; and - provide hyperlinks to help scientists in tracking the spread of flu The mobile application is developed at the Dynamical Systems Laboratory: http://faculty.poly.edu/~mporfiri/index.htm Supported by the National Science Foundation: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1561134 Deployed by New York University: https://www.nyu.edu/